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                  <h4>mywkeep</h4>Keep part of a vector or a matrix.
                  <br><small>Last modified: 25-Sep-2009 16:28:41</small>

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                  <a href="http://guillaumemaze.googlecode.com/svn/trunk/matlab/codes/matrix/mywkeep.m">Download here</a>
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                  <br>% MYWKEEP Keep part of a vector or a matrix.<br>%   For a vector:<br>%   Y = WKEEP(X,L,OPT) extracts the vector Y <br>%   from the vector X. The length of Y is L.<br>%   If OPT = 'c' ('l' , 'r', respectively), Y is the central<br>%   (left, right, respectively) part of X.<br>%   Y = WKEEP(X,L,FIRST) returns the vector X(FIRST:FIRST+L-1).<br>%<br>%   Y = WKEEP(X,L) is equivalent to Y = WKEEP(X,L,'c').<br>%<br>%   For a matrix:<br>%   Y = WKEEP(X,S) extracts the central part of the matrix X. <br>%   S is the size of Y.<br>%   Y = WKEEP(X,S,[FIRSTR,FIRSTC]) extracts the submatrix of <br>%   matrix X, of size S and starting from X(FIRSTR,FIRSTC).
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                  Last update: 2011 March 04, 17:46<br>
                  Created by Guillaume Maze<br>
                  More informations at: <a href="http://codes.guillaumemaze.org/matlab">codes.guillaumemaze.org/matlab</a><br>
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